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Finding the Third Proportional to 667,331 and 1,439,638

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Solution

The third proportional to 667,331 and 1,439,638 is: 3,105,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,331 : 1,439,638 = 1,439,638 : x
  2. Step 2: Convert to fraction form
    667,331/1,439,638 = 1,439,638/x
  3. Step 3: Cross multiply
    667,331x = 1,439,638 × 1,439,638
  4. Step 4: Simplify right side
    667,331x = 2,072,557,571,044
  5. Step 5: Solve for x
    x = 2,072,557,571,044/667,331
  6. Step 6: Final answer
    x = 3,105,741.49

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.